Elon Musk: Tesla Model S floats, can be a boat for short amount of time

Your Model S can be a "boat" -- but Tesla doesn't recommend it.

(Image: Tesla)

Your $70,000 Tesla Model S isn't just a fancy car with a big screen.

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Tesla founder and CEO Elon Musk confirmed in a tweet on Sunday the all-electric Model S "floats well enough to turn it into a boat for short periods of time."

While Musk doesn't recommend taking advantage of the feature by going to your local lake, the confirmation came following a Model S driving through a flooded tunnel in Russia. It could be a nice safety feature to help you out of some tricky situations.

Musk said the thrust comes from the Model S' wheel rotation, so your vehicle isn't just dead in the water.

Musk, who is very outspoken on Twitter, added: "Am still planning to do a sports sub car that can drive on roads. Just a side project." He did not give a timeline when it may launch.